A particle has velocity v(t)=2t²−7t+3 m/s. What is the first positive time at which it comes to rest?

Question

G1 Physics · Accepted Answer

Set v=0: 2t²−7t+3=(2t−1)(t−3)=0. The roots are t=0.5 s and 3 s. The first positive time is 0.5 s.